<template>
  <div class='tags-view-container'>
    <router-link
      v-for='(tag, index) in $store.getters.tagsViewList'
      :key='tag.fullPath'
      class='tags-view-item'
      :class='isActive(tag) ? "active" : ""'
      :to='{path: tag.fullPath}'
      :style="{
          backgroundColor: isActive(tag) ? $store.getters.cssVar.menuBg : '',
          borderColor: isActive(tag) ? $store.getters.cssVar.menuBg : ''
        }"
      @contextmenu.prevent='onpenMenu($event, index)'
      >
      {{tag.title}}
      <i
        v-show='!isActive(tag)'
        @click.prevent.stop='onCloseClick(index)'>x</i>
    </router-link>
    <context-menu
      v-show='visible'
      :style='menuStyle'
      :index='selectIndex'></context-menu>
  </div>
</template>

<script setup>
import { ref, watch } from 'vue'
import { useRoute } from 'vue-router'
import { useStore } from 'vuex'
import ContextMenu from './ContextMenu'
const route = useRoute()
// 是否被选中
const isActive = tag => {
  return tag.path === route.path
}

/**
 * 关闭 tag 的点击事件
 */
const store = useStore()
const onCloseClick = (index) => {
  store.commit('app/removeTagsView', { type: 'index', index })
}

/**
 * 鼠标右键
 */
const visible = ref(false)
const menuStyle = ref({
  left: 0,
  top: 0
})
const selectIndex = ref(0)
const onpenMenu = (e, index) => {
  const { x, y } = e
  menuStyle.value.left = x + 'px'
  menuStyle.value.top = y + 'px'
  selectIndex.value = index
  visible.value = true
}

const closeMenu = () => {
  visible.value = false
}
watch(visible, val => {
  if (val) {
    document.body.addEventListener('click', closeMenu)
  } else {
    document.body.removeEventListener('click', closeMenu)
  }
})
</script>

<style lang='scss' scoped>
.tags-view-container {
  height: 34px;
  width: 100%;
  background: #fff;
  border-bottom: 1px solid #d8dce5;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.12), 0 0 3px 0 rgba(0, 0, 0, 0.04);
  .tags-view-item {
    display: inline-block;
    position: relative;
    cursor: pointer;
    height: 26px;
    line-height: 26px;
    border: 1px solid #d8dce5;
    color: #495060;
    background: #fff;
    padding: 0 8px;
    font-size: 12px;
    margin-left: 5px;
    margin-top: 4px;
    &:first-of-type {
      margin-left: 15px;
    }
    &:last-of-type {
      margin-right: 15px;
    }
    &.active {
      color: #fff;
      &::before {
        content: '';
        background: #fff;
        display: inline-block;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        position: relative;
        margin-right: 4px;
      }
    }
    // close 按钮
    .el-icon-close {
      width: 16px;
      height: 16px;
      line-height: 10px;
      vertical-align: 2px;
      border-radius: 50%;
      text-align: center;
      transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
      transform-origin: 100% 50%;
      &:before {
        transform: scale(0.6);
        display: inline-block;
        vertical-align: -3px;
      }
      &:hover {
        background-color: #b4bccc;
        color: #fff;
      }
    }

  }
}
</style>
